Variety traits

Uniformity

Uniformity is an indicator of the homogeneity of a seed lot or plants in a crop based on traits such as size, height, maturity date, and habitus. High uniformity ensures even emergence and yield stability, which is critical for variety assessment and product quality.

Mentioned in descriptions 10 270 varieties reference book.

In agronomy and seed production, seed uniformity defines their homogeneity in size, most often thickness, which influences sowing quality. Crop uniformity characterizes the homogeneity of the plant stand in terms of height, phenological stage timing, and general plant habitus, which is important for the efficiency of mechanical harvesting.

During laboratory seed analysis, the indicator is expressed as a percentage representing the sum of the two most representative adjacent fractions. In variety testing, plant uniformity is evaluated visually or through the coefficient of variation of morphological traits. The lower the coefficient of variation, the higher the level of variety uniformity is considered to be.

The level of this trait depends on both the genetic characteristics of the variety and environmental conditions, including agronomic practices and meteorological factors during the seed formation period. Material with a uniformity of at least 80% is considered standard, and values below this threshold require mandatory calibration of the lot before sowing.

Sources10

Breakdown by crop

Tomato Uniformity 81 Uniformity — White Cabbage 79 Barley grain uniformity 68 Carrot uniformity 51 Potato Uniformity 47 Uniformity — Cauliflower 45 Uniformity of lettuce 40 Pepper uniformity 38 Radish uniformity 31 Uniformity — Onion 30 Uniformity of cucumber 23 Sunflower uniformity 21 Uniformity — Onion 20 Uniformity — soft wheat 19 Uniformity — Broccoli 16 Triticale Uniformity 15 Watermelon Uniformity 14 Bean uniformity 14 Uniformity — Brussels sprout 13 Uniformity — Red Cabbage 12 Uniformity of zucchini 11 Uniformity — Leek 10 Uniformity of Chrysanthemum 10 Pea uniformity 10

Found in these crops

Tomato 944 Bell pepper 415 Lettuce 371 Cucumber 272 Potato 256 White cabbage 242 Melon 231 Carrot 215 Cauliflower 192 Field pumpkin 149 Maize 146 Common bean 146

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Р8660

Active

Zea mays L. · Maize

Benoit Revol

1 record

Zouk F1

Terminated

Solanum lycopersicum L. · Tomato

Sylvain Bontems

1 record

Złoty Łan

Terminated

Matricaria recutita L. · German chamomile

Instytut Roślin i Przetworów Zielarskich

1 record

Zlatina

Application submitted

Capsicum annuum L. · Bell pepper

V. Todorova, I. Tringovska-Mendeva, St. Grozeva-Tileva, D. Kostova-Protohristova, G. Pevicharova, Amol Nankar, Ts. Gechev

2 records

Zonella

Application submitted

Raphanus sativus L. var. sativus · Radish

Hazera Seeds B.V.

2 records

ZHY3278OY

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Leo Schoots

2 records

Zantes

Application submitted

Cucurbita pepo L. · Field pumpkin

Syngenta Crop Protection AG

2 records

ZAFIRA

Application submitted

Phaseolus vulgaris L. · Common bean

RAMIRO ARNEDO, S.A.

1 record

YOLINDA

Terminated

Chrysanthemum L. · Chrysanthemum

Cornelis P. VandenBerg

1 record

Yuki

Protection expired

Brassica rapa L. subsp. chinensis (L.) Hanelt · Bok choy

Sakata Seed Corporation

1 record

YESSENIA

Withdrawn

Solanum lycopersicum L. · Tomato

WESTERN SEED ESPAÑA, S.A.

1 record

Yosun

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

VANDENBERG| Cornelis P. Vandenberg

1 record

Yuvileinyi

Active

Solanum lycopersicum L. · Tomato

Kobylina Nataliia Oleksandrivna, Vozhehova Raisa Anatoliivna, Liuta IUliia Oleksandrivna,

2 records

Yusuf 408

Terminated

Solanum lycopersicum L. · Tomato

Kees Konst

2 records

Zoreslav

Active

Solanum lycopersicum L. · Tomato

Kuraksa Nina Petrivna, Kovalevs`ka Aksyn`ia Viktorivna, Pylypenko Liubov Vasylivna, Ternova Tetiana Andriivna,

2 records

Yellou Peshen

Active

Solanum lycopersicum L. · Tomato

Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"

2 records

Yaradette

Active

Solanum lycopersicum L. · Tomato

Nunhems Netherlands B.V.

1 record

Xylora XR

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

2 records

Yaskrava Zirka

Active

Raphanus sativus L. var. sativus · Radish

Vovk Zhanna Mykolaivna

2 records

X19WT278C

Withdrawn

Brassica napus L. · Rapeseed

Jean-Claude Pruvot

1 record

Xantorini

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

2 records

WIZARD

Withdrawn

Capsicum annuum L. · Bell pepper

Seminis Vegetable Seeds

1 record

YELLOW DRAMATIC

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

KJELL-ÅKE PERSSON

1 record

Wilga Niwa

Application submitted

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Niwa Hodowla Roślin Jagodowych sp. z o.o.

2 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.